Angular anisotropy of prompt γ rays and fragment spin alignment in binary and light-charged-particle-accompanied spontaneous fission of 252Cf

Angular correlations of prompt γ rays in binary and light-charged-particle (LCP)-accompanied spontaneous fission of 252Cf were measured with a 4π-crystal-ball NaI(Tl) γ-ray spectrometer. For 3H, 4He, 6He, Li, and Be accompanied fission, γ-ray angular distributions were deduced with respect to the mo...

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Hauptverfasser: Kopach, Yu. N. (VerfasserIn) , Singer, P. (VerfasserIn) , Mutterer, M. (VerfasserIn) , Klemens, M. (VerfasserIn) , Hotzel, Arthur (VerfasserIn) , Schwalm, Dirk (VerfasserIn) , Thirolf, P. (VerfasserIn) , Hesse, M. (VerfasserIn) , Gönnenwein, F. (VerfasserIn)
Dokumenttyp: Article (Journal)
Sprache:Englisch
Veröffentlicht: 11 January 1999
In: Physical review letters
Year: 1999, Jahrgang: 82, Heft: 2, Pages: 303-306
ISSN:1079-7114
DOI:10.1103/PhysRevLett.82.303
Online-Zugang:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1103/PhysRevLett.82.303
Verlag, lizenzpflichtig, Volltext: https://link.aps.org/doi/10.1103/PhysRevLett.82.303
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Verfasserangaben:Yu.N. Kopach, P. Singer, M. Mutterer, M. Klemens, A. Hotzel, D. Schwalm, P. Thirolf, M. Hesse, F. Gönnenwein

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520 |a Angular correlations of prompt γ rays in binary and light-charged-particle (LCP)-accompanied spontaneous fission of 252Cf were measured with a 4π-crystal-ball NaI(Tl) γ-ray spectrometer. For 3H, 4He, 6He, Li, and Be accompanied fission, γ-ray angular distributions were deduced with respect to the motion both of the fragments and the LCPs. There is no indication for a change of the fragment spin alignment by the LCP release or for a correlation between the LCP direction and a bending motion at scission, as was argued in previous investigations. Consequences for the understanding of fragment spin formation are briefly discussed. 
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